JP2015212994A - 近接場トランスデューサ(nft)の一部を形成する方法およびそれによって形成された物品 - Google Patents
近接場トランスデューサ(nft)の一部を形成する方法およびそれによって形成された物品 Download PDFInfo
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- JP2015212994A JP2015212994A JP2015092990A JP2015092990A JP2015212994A JP 2015212994 A JP2015212994 A JP 2015212994A JP 2015092990 A JP2015092990 A JP 2015092990A JP 2015092990 A JP2015092990 A JP 2015092990A JP 2015212994 A JP2015212994 A JP 2015212994A
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/127—Structure or manufacture of heads, e.g. inductive
- G11B5/31—Structure or manufacture of heads, e.g. inductive using thin films
- G11B5/3109—Details
- G11B5/313—Disposition of layers
- G11B5/3133—Disposition of layers including layers not usually being a part of the electromagnetic transducer structure and providing additional features, e.g. for improving heat radiation, reduction of power dissipation, adaptations for measurement or indication of gap depth or other properties of the structure
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/127—Structure or manufacture of heads, e.g. inductive
- G11B5/31—Structure or manufacture of heads, e.g. inductive using thin films
- G11B5/3109—Details
- G11B5/3116—Shaping of layers, poles or gaps for improving the form of the electrical signal transduced, e.g. for shielding, contour effect, equalizing, side flux fringing, cross talk reduction between heads or between heads and information tracks
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/127—Structure or manufacture of heads, e.g. inductive
- G11B5/31—Structure or manufacture of heads, e.g. inductive using thin films
- G11B5/3109—Details
- G11B5/313—Disposition of layers
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/127—Structure or manufacture of heads, e.g. inductive
- G11B5/31—Structure or manufacture of heads, e.g. inductive using thin films
- G11B5/3109—Details
- G11B5/313—Disposition of layers
- G11B5/3133—Disposition of layers including layers not usually being a part of the electromagnetic transducer structure and providing additional features, e.g. for improving heat radiation, reduction of power dissipation, adaptations for measurement or indication of gap depth or other properties of the structure
- G11B5/314—Disposition of layers including layers not usually being a part of the electromagnetic transducer structure and providing additional features, e.g. for improving heat radiation, reduction of power dissipation, adaptations for measurement or indication of gap depth or other properties of the structure where the layers are extra layers normally not provided in the transducing structure, e.g. optical layers
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/127—Structure or manufacture of heads, e.g. inductive
- G11B5/31—Structure or manufacture of heads, e.g. inductive using thin films
- G11B5/3163—Fabrication methods or processes specially adapted for a particular head structure, e.g. using base layers for electroplating, using functional layers for masking, using energy or particle beams for shaping the structure or modifying the properties of the basic layers
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B2005/0002—Special dispositions or recording techniques
- G11B2005/0005—Arrangements, methods or circuits
- G11B2005/0021—Thermally assisted recording using an auxiliary energy source for heating the recording layer locally to assist the magnetization reversal
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Electrodes Of Semiconductors (AREA)
- Magnetic Heads (AREA)
- Recording Or Reproducing By Magnetic Means (AREA)
- Internal Circuitry In Semiconductor Integrated Circuit Devices (AREA)
- Physical Vapour Deposition (AREA)
Abstract
【解決手段】近接場トランスデューサ(NFT)構造の少なくとも一部を形成し、NFTの一部の少なくとも一方の表面上に材料を堆積させて金属含有層を形成し、前記金属含有層に、NFTの一部の少なくとも一方の表面内への材料の少なくとも一部の拡散を引き起こす条件を施すことにより、NFT及び磁極(ポール)への温度上昇による損傷や変形等を低減する。
【選択図】図1
Description
近接場トランスデューサ(NFT)構造の少なくとも一部を形成すること;NFTの一部の少なくとも一方の表面上に材料を堆積させて金属含有層を形成すること;および金属含有層に、NFTの一部の少なくとも一方の表面内への材料の少なくとも一部の拡散を引き起こす条件を施すことを含む方法を開示する。
熱補助磁気記録(HAMR)は、エネルギー源、例えば、レーザーを使用して、媒体の温度をそのキュリー温度より高い温度に上昇させて、より小さな面密度での磁気記録を可能にする。媒体の小さな面積(例えば、約20〜50ナノメートル(nm))に(例えば)エネルギーを伝えるために、近接場トランスデューサ(NFT)を利用することができる。記録プロセス中に、NFTおよびポールは、エネルギー源からのエネルギーを吸収し、NFTの温度上昇(時には、例えば400℃まで)を引き起こす。一部のNFTは、小さなペグおよび大きなディスクを含む。NFTおよびポールが達した高温は、ポールの酸化、ポールの腐食、ペグからディスクへの原子の拡散、またはそれらの組み合わせを引き起こす場合があり、それによってポールの損傷や、ペグの変形および凹みをもたらす場合がある。
Claims (20)
- 近接場トランスデューサ(NFT)構造の少なくとも一部を形成する工程と;
前記NFTの一部の少なくとも一方の表面上に材料を堆積させて金属含有層を形成する工程と;
前記金属含有層に、前記NFTの一部の少なくとも一方の表面内への前記材料の少なくとも一部の拡散を引き起こす条件を施す工程と
を含む方法。 - 前記金属含有層に、拡散を引き起こす条件を施す工程が、アニールを含む、請求項1に記載の方法。
- 前記アニールが、オーブンアニールまたはレーザーアニールを含む、請求項2に記載の方法。
- 前記アニールが、前記金属含有層を少なくとも約100℃に加熱することを含む、請求項2に記載の方法。
- 前記金属含有層に、拡散を引き起こす条件を施す工程が、前記NFT構造に電気的バイアスを印加する工程を含み、前記堆積させる工程および前記NFTに電気的バイアスを印加する工程が、同時に行われる、請求項1に記載の方法。
- 前記電気的バイアスが、約200V〜約1000Vである、請求項5に記載の方法。
- 前記金属含有層が、Cr、Sn、Pt、Y、Pd、Mn、Cu、In、Ni、Pd、Al、Ti、Ta、またはそれらの組み合わせから成る、請求項1に記載の方法。
- 前記金属含有層が、少なくとも2つの層を含む、請求項1に記載の方法。
- 前記金属含有が、Si、Ta、Al、Mn、Y、Cr、またはそれらの組み合わせから成る外側層を含む、請求項8に記載の方法。
- 前記外側層の少なくとも一部を酸化することをさらに含む、請求項9に記載の方法。
- 前記NFTの一部の少なくとも一方の表面から前記金属含有層の一部を取り除くことをさらに含む、請求項1に記載の方法。
- 前記金属含有層の一部を取り除く工程が、プラズマエッチングまたはイオンミリングで行われる、請求項11に記載の方法。
- 約0.5nm以下の前記金属含有層が、前記NFTの表面に残留する、請求項12に記載の方法。
- 前記金属含有層の一部が取り除かれた後に、オーバーコート材料を堆積させる工程をさらに含む、請求項1に記載の方法。
- 前記金属含有層に、拡散させる条件を施す前に、前記金属含有層の一部を取り除く工程をさらに含む、請求項1に記載の方法。
- 近接場トランスデューサ(NFT)構造の少なくとも一部を形成する工程と;
前記NFTの少なくとも空気ベアリング表面上に材料を堆積させて金属含有層を形成する工程と;
前記金属含有層に、前記NFTの一部の少なくとも一方の表面内への前記材料の少なくとも一部の拡散を引き起こす条件を施す工程と;
前記金属含有層の少なくとも一部を取り除く工程と;および
オーバーコート層を適用する工程と
を含む方法。 - 前記金属含有層に、拡散を引き起こす条件を施した後に、前記金属含有層の少なくとも一部を酸化する工程をさらに含む、請求項16に記載の方法。
- 近接場トランスデューサ(NFT)構造の少なくとも一部を形成する工程と;
前記NFTの少なくとも空気ベアリング表面上に材料を堆積させて金属含有層を形成する工程と;
前記NFTの空気ベアリング表面上にはない金属含有層の一部を取り除く工程と;
前記金属含有層に、前記NFTの一部の少なくとも一方の表面内への前記材料の少なくとも一部の拡散を引き起こす条件を施す工程と;
前記金属含有層の少なくとも一部を取り除く工程と;および
オーバーコート層を適用する工程
を含む方法。 - 前記金属含有層に、拡散を引き起こす条件を施した後に、前記金属含有層の少なくとも一部を酸化する工程をさらに含む、請求項18に記載の方法。
- 前記金属含有層に、拡散を引き起こす条件を施す工程が、アニールを含む、請求項18に記載の方法。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/266,920 US9305572B2 (en) | 2014-05-01 | 2014-05-01 | Methods of forming portions of near field transducers (NFTS) and articles formed thereby |
US14/266,920 | 2014-05-01 |
Publications (2)
Publication Number | Publication Date |
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JP2015212994A true JP2015212994A (ja) | 2015-11-26 |
JP2015212994A5 JP2015212994A5 (ja) | 2018-06-14 |
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JP2015092990A Pending JP2015212994A (ja) | 2014-05-01 | 2015-04-30 | 近接場トランスデューサ(nft)の一部を形成する方法およびそれによって形成された物品 |
Country Status (4)
Country | Link |
---|---|
US (3) | US9305572B2 (ja) |
JP (1) | JP2015212994A (ja) |
KR (1) | KR101789600B1 (ja) |
CN (1) | CN105047204B (ja) |
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US9548076B2 (en) | 2013-11-08 | 2017-01-17 | Seagate Technology Llc | Magnetic devices with overcoats |
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2014
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2015
- 2015-04-24 CN CN201510203598.9A patent/CN105047204B/zh active Active
- 2015-04-30 KR KR1020150061523A patent/KR101789600B1/ko active IP Right Grant
- 2015-04-30 JP JP2015092990A patent/JP2015212994A/ja active Pending
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KR20150126303A (ko) | 2015-11-11 |
CN105047204A (zh) | 2015-11-11 |
US9305572B2 (en) | 2016-04-05 |
CN105047204B (zh) | 2018-06-12 |
US10424324B2 (en) | 2019-09-24 |
US20180102137A1 (en) | 2018-04-12 |
US20150318003A1 (en) | 2015-11-05 |
US9842613B2 (en) | 2017-12-12 |
KR101789600B1 (ko) | 2017-10-25 |
US20160217812A1 (en) | 2016-07-28 |
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